Howtosignalprocessing
- What is the purpose of channel encoder?
- What is the purpose of source encoder and channel encoder?
- What is the function of encoder in digital communication?
- What is the difference between source encoding and channel coding?
What is the purpose of channel encoder?
The purpose of the channel encoder is to provide the GSM receiver with the ability to detect transmission errors and eventually correct some of these. This is to improve the transmission quality from a bit error point of view. Various encoding standards are used in GSM depending on the mode of transmission.
What is the purpose of source encoder and channel encoder?
Channel coding: The channel encoder converts bits to signal waveform, while the decoder converts received waveform back to bits. The block diagram of channel coding is depicted in Fig. 4. Source encoding aims to convert information waveforms (text, audio, image, video, etc.)
What is the function of encoder in digital communication?
Encoders convert motion to an electrical signal that can be read by some type of control device in a motion control system, such as a counter or PLC. The encoder sends a feedback signal that can be used to determine position, count, speed, or direction.
What is the difference between source encoding and channel coding?
The goal of source coding is to represent a source with the lowest possible rate to achieve a particular distortion, or with the lowest possible distortion at a given rate. Channel coding adds redundancy to quantized source information to recover channel errors.
